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zmey [24]
2 years ago
14

HELP PEOPLE I AGAIN FORGOT EVERYTHING

Mathematics
1 answer:
Zolol [24]2 years ago
8 0

Answer:

9

Step-by-step explanation:

Create a proportion

\frac{x}{12} = \frac{63}{84}

84 divide by what gives you 12? 7

So divide 63 by 7, and you get 9.

This doesn't work with all of these problems so you can always cross multiply then divide.

12(63) = 756

84(x) = 84x

84x = 756

84x/84 = 756/84

x = 9

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